Advisory Published

USN-3628-2: OpenSSL vulnerability

First published: Thu Apr 19 2018(Updated: )

USN-3628-1 fixed a vulnerability in OpenSSL. This update provides the corresponding update for Ubuntu 12.04 ESM. Original advisory details: Alejandro Cabrera Aldaya, Billy Brumley, Cesar Pereida Garcia and Luis Manuel Alvarez Tapia discovered that OpenSSL incorrectly handled RSA key generation. An attacker could possibly use this issue to perform a cache-timing attack and recover private RSA keys.

Affected SoftwareAffected VersionHow to fix
All of
ubuntu/libssl1.0.0<1.0.1-4ubuntu5.41
1.0.1-4ubuntu5.41
Ubuntu OpenSSH Client=12.04

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Child vulnerabilities

(Contains the following vulnerabilities)

Frequently Asked Questions

  • What is the vulnerability ID for this OpenSSL vulnerability?

    The vulnerability ID for this OpenSSL vulnerability is CVE-2018-0737.

  • What is the severity of CVE-2018-0737?

    The severity of CVE-2018-0737 is high.

  • Which version of Ubuntu is affected by this vulnerability?

    Ubuntu 12.04 is affected by this vulnerability.

  • What is the recommended remedy for this vulnerability?

    The recommended remedy for this vulnerability is to update the libssl1.0.0 package to version 1.0.1-4ubuntu5.41.

  • Where can I find more information about this vulnerability?

    More information about this vulnerability can be found at the following references: [USN-3628-1](https://ubuntu.com/security/notices/USN-3628-1) and [USN-3692-1](https://ubuntu.com/security/notices/USN-3692-1).

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